Trim Castle is a medieval castle on the south bank of the River Boyne in Trim, County Meath, Ireland. It is the largest Anglo-Norman castle in Ireland and one of the most important medieval fortifications in the country. The castle was begun in the late twelfth century by Hugh de Lacy and later expanded by Walter de Lacy, developing into a large walled complex with a massive central keep, curtain walls, towers, gatehouses and open courtyards. Its scale, ruined stonework and riverside setting have made it one of Irelandโs most recognisable castle locations on screen.
Trim Castle has appeared in The Big Red One (1980) and Braveheart (1995). In both films, the castle is used to represent places outside Ireland, with its medieval walls and courtyards standing in for wartime or English settings rather than its real Irish identity.
In The Big Red One (1980), Trim Castle appears in Samuel Fullerโs Second World War film. The castle is used as part of the filmโs European war setting, with its stone ruins and open grounds giving the scene a historic battlefield atmosphere. The film uses the Irish castle as a stand-in location, placing the medieval structure inside a twentieth-century war story rather than presenting it as Trim itself.
In Braveheart (1995), Trim Castle is used for several English locations. The castleโs curtain walls stand in for the fortified city of York, which William Wallace and his men attack after the Battle of Stirling. The production also created the London square on the other side of the castle wall, making Trim one of the filmโs main English-setting locations. The castleโs large walls, towers and courtyards allow the film to present different parts of medieval England within the same real location in County Meath.

Braveheart
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Old Castle Ward
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Ardkinglas House
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Stirling Castle
Stirling Castle is one of Scotlandโs most important historic castles, standing on Castle Hill above the city of Stirling. Its position onโฆ
Ross Fountain
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Greyfriars Kirkyard
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Victoria Terrace
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Victoria Street
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Makarsโ Court
Makarsโ Court appears in Frankenstein (2025), Guillermo del Toroโs adaptation of Mary Shelleyโs novel. The production filmed several Edinburgh locations.
St Giles’ Cathedral
St Gilesโ Cathedral has appeared in Avengers: Infinity War (2018), and the area around the cathedral was also used for Frankenstein (2025).


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